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J. F. STANDISH.

HEATING DEVICE.

APPLICATION FILED on. 9. 1911.

1 ,320 65 3. Patented Nov. 4, 1919.

2 SHEETS-SHEET '1.

J. F. 'STANDISH.

HEATING DEVICE.

APPLICATION FILED 01:1.9. 1911.

Patented Nov. 4, 1919.

2 SHEETS-SHEET 2.

STATES PATENT OFFICE.

JOHN F. smnmsn, or wm'rnnor, mssacnusn'r'rs, nssmiwoa, BY mnsnn ASSIGN-mnn'rs, 'ro unIrEn-xrnprrn FINISHING couramr, or BEBWICK, manna, Aooaro- B ATION OF MAINE.

' nimrmc nnvrcn.

Specification of Letters Patent.

Patented Nov. 4, 1919.

Application filed October 9, 1917. Serial No. 195,614.

To all whom it may concern:

Be it known that I, JOHN F. STANDISH, a citizen of the United States,residing at Winthrop, in the county of Suifolk and State ofMassachusetts, have invented certain Improvements in Heating Devices, of

which the following description, in connection with the accompanyingdrawings, is a specification, like reference characters on the drawingsindicating like parts in the several figures.

This invention relates to means for heat-' ing various substances, andespecially to means for maintammg In a fluld condition waxes, cementsand other materlals employed in connection with shoemaking.

'a device adapted to be heated by different agencies to meet diiferentconditions encountered. For this purpose a receptacle for the materialto be-heated is arranged to effectively cooperate with heating devicesof different character, as gas burners or'electric heating units.

A further object of the invention is to so arrange the receptacle thatany one of the plurality of types of heating devices may be readilyapplied to it.

When one of the devices exerts its heating effect by combustion, anobject of the invention is to cause a passage to which the heatingdevices may be applied to serve as a flue for the combustion-heatingdevice when the companion device is removed.

Still another object of the invention is to heat in an efficient mannera materialfeeding member. This may be accomplished by having thisfeeding member move over a surface upon a portion of the receptacle towhich heat is applied to affect the contained material.

An apparatus for attaining the objects mentioned and related objects ishereinafter described and illustrated inthe annexed drawings, in which,

Figure 1 is a central vertical section through one embodiment of theinvention, an

Fig. 2 is a side elevation of the receptacle, parts being broken away. A

I have chosen as a form representative of the invention the wax pot of aburnishing machine, this including a receptacle 10 having a bottom wall12 and a side wall 14 and central portion 16 rising from 12. Between theouter wall and inner portion is an intermediate space to contain the waxW to be heated. A wheel 18 for applying this to the burnishing member ofthe machine is rotatably mounted upon the portion 16, it contacting overa considerablearea of its inner side with a plane surface 19 thereon.The wheel is driven in any convenient manner. Through the receptacle isa heating passage or chamber for cooperating with different types ofheating devices. One portion of the passage is situated beneath thebottom wall '12, being furnished by a recess 20 the bottom of which maybe closed by a base plate 22 upon which the receptacle is supported, itbeing secured in, place by screws 24. The recess is open at one side, asshown at 26, and above this opening is a curved shield 27 to protect theelements cooperating with the opening from wax which may drip from thetop of the pot. Opening from the recess 20 is an upwardlyextendingpassage 28 preferably located at the axis of the receptacle and at thecenter of the portion 16. This passage 28 is of such form as to receivean electric heating unit 30, which ma be of any desired constructionhaving t e capacity necessary to generate the heat required. The unitwhen in place in the passage 28 preferably ex- I so that this wheel istends from the bottom thereof to a point above the level of the wax inthe receptacle. In assembling the electric unit and receptacle, thelatter is removed from the base and the unit. introduced through the topof the passage 28, the leading-in wires 34 of the unit projecting intothe recess 20. The top of the passage 28 is threaded to receive a plug32, serving to prevent wax which might short circuit the unit fromenteri-ng the passage and also reventlng the escape of the heatgenerated Before the receptacle is attached to the base, the leading-1nWires are connected to the terminals 36 of'one section of a push plug orother suitable electrical connector, the insulating block 37 of which isfixed to the under side of the bottom wall of the receptacle by a screw38. The other section 40 of the plug is mounted within a holder 42,being secured in place therein by a screw 44. To the terminals of thissecond section are joined the supply conductors 46 which may beencircled by a spiral spring-protector 48 carried by the end of theholder. The heat generated by the current flowing through the unit 30 isdirectly communicated to the wax through the wall of the portion 16. Itwill be noted that the leading-in conductors of the unit are so situatedthat they can not be short circuited or injured otherwise, and that theconnecting means is protected against the drip of wax from the pot bythe shield 27.

If gas rather than electricity is to be used as aheating agent, insteadof placing the electric unit with its supporting and'connecting means inthe passages of the receptacle, a burner 50, which may be of the Bunsentype, may be mounted upon a convenient portion of the frame of themachine at 52. The delivery opening of this burner is situated inproximity to the opening 26 of the portion 20 of the passage, and whenthe gas is lighted it delivers its flame within the passage 20, the heattherefrom rising through the passage 28 which serves as a flue, the plug32 being removed. Therefore the heat of the flame is delivered to thematerial both through the bottom wall 12 and through the wall of theportion 16. With this arrangement of the device, the shield 27 preventsthe dripping wax from being ignited by the flame, deflecting it toopposite sides of the openin 26. Whatever agent is employed, its heat isdirectly communicated to the feed wheel 18 through the surface 19,

at a temperature sufficient to maintain the material fluid as it isapplied.

It will be clear that not only may either of the different heatingdevices be readily applied to the receptacle and will cooperatetherewith in a highly efficient manner, but that if it is desired tochange the heating agent, this may easily be accomplished by one notpossessing special skill.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A device for heating material comprising a' receptacle for thematerial to be heated provided with a portions respectively constructedand arranged to cooperate with heating devices of different character.

2-. A device for heating material comprising a receptacle for thematerial to be heated provided with a: passage having different portionsrespectively constructed and arranged to cooperate with heating devicesof different character, one of the portions of the passage conductingthrough the receptacle the heat generated in the other portion.

3. A device for heating material comprising a receptacle for material tobe heated provided with a passage having diiferent portions, one of saidportions being constructed and arranged to receive a heating device ofone character and the other portion being arranged to cooperate with aheating device of a different character on the removal of thefirst-mentioned heating device.

4. A device for heating material comprising a receptacle for thematerial to be heated provided with a passage having different portions,one of said portions being constructed and arranged to receive anelectric heating device and the other portion being arranged tocooperate with a device heating by combustion.

5. A device for heating material comprising a receptacle for thematerial to be heated provided With a passage situated in its lowerportion to receive a heating device and an upwardly extending passageleading therefrom for another heating device.

6. A device for heating material comprising a receptacle for thematerial to be heated provided with a passage constructed and arrangedto receive a plurality of heating de vices, one of which operates bycombustion, the passage when the combustion-heating device is in use andthe companion device is removed serving as a flue for the former.

7. A device for heating material comprising a receptacle for thematerial to be heated provided with a passage constructed and arrangedto receive an electrical heating device and a device for heating bycombustion, the passage when the electrical heating device is removedtherefrom and the combus tion-heating device is in use serving as a fluefor the latter.

8. A device for heating material comprispassage having differentarranged to cooperate with a evice heating by combustion, thefirst-named portion of the passage, when the combustion-heating deviceis in use, servin as a flue therefor.

9. A device for heating material comprising a receptacle for thematerial to be heated provided with a passage having different portionsrespectively constructed and arranged to cooperate with heating devicesof different character, and means for closing one end of the passage.

10. A device for heating material com prisin .a receptacle for thematerial to be heate provided with a passage situated in its lowerportion to receive a heating device and an upwardly extending passageleading therefrom for another heating device, and means for closing theupper end of the upwardly extending passage.

11. A device for heating material comprising a receptacle having sideand bottom walls and an inner portion rising through the receptacle fromthe bottom wall, there being a recess in the receptacle beneath thebottom wall and a passage through the inner portion connecting with therecess.

12. A device for heating material comprising a receptacle having sideand b ottom walls and an inner portion rising through the receptaclefrom the bottom wall, there being a recess in the receptacle beneath athe bottom wall and a passage through the inner portion connectin with"the recess, and a plug for coiiperatlon with the upper end of thepassage.

13. A device for heating material comprising a receptacle having sideand bottom walls and an inner portion rising through the receptacle fromthe bottom wall, there being a recess with an opening at one side of thereceptacle beneath the bottom wall and a passage through the innerportion connecting with the recess.

14. A device for heating material comprising a receptacle having sideand bottom walls and an inner portion rising through the receptacle fromthe bottom wall, there being a recess with an opening at one side of thereceptacle beneath the bottom wall and a passage through the innerportion connecting with the recess, and means situated adjacent to therecess for securing a heating device.

15. A device for heating material comprising a receptacle having sideand bottom walls and an inner portion rising through the receptacle fromthe bottom wall, there being a recess with an opening at one side of thereceptacle beneath the bottom wall and a passage through the innerportion connecting with the recess, and a shield situated above theopening to the recess.

A device for heating material comprising a base, plate, a receptacleremovably secured to the base plate and having a recess forming with.the base plate a passage opening at the side of the receptacle, therebeing a passage leadingefrom that first named through the receptacle,and a heating device cooperating with one of the passages.

A device for heating material comprising a base plate, a receptacleremovably secured to the base plate and having a receSs. forming withthe base plate a passage openlng at the side of the receptacle, therebeing a passage leading from that firstnamed through the receptacle, aheating device cooperating with the passage through the receptacle, andconnections for the heatlng device entering the recess.

A device for heating material comprising a receptacle for the materialto be heated provided with a passage situated at its lower portion andan upwardly extending passage leading therefrom, and a heating devicecooperating with one of the passag tending passage, and connections forsaid heatlng device entering the lower passage.

A device for heating material comprising a receptacle having a portionextending through the material for communicating heat thereto, meansjorheating said portion, and a material-feeding member mounted upon theheated portion to receive heat therefrom and transmit it to thematerial. Y

22. A device for heating material comprising a receptacle having a"central portion forming with the receptacle an intermediatematerial-receiving space, means for heating sald portlon and a feedingmember mounted upon the central portion to receive heat therefrom andextending into the space, said member transmitting heat to the materialit carries and that within the space.

23. A device for heating material comprising a receptacle havin aportion extendmg through the materia for communicating heat thereto,means for heating said por;

tion, and a material-feedin member provided with a face movable incontact with the heated portion to conduct heat directiy through themember to the material on said member.

24. A device for heating material comprising a receptacle having aportion extendmg through the material to communicate heat thereto andbeing provided with a plane surface, means for heatin said rtions, and afeeding wheel contacting with said surface over a considerable area ofoneof its sides to effectively conduct heat from the heated portionsthrough the contacting surfaces to the material on the wheel.

In testimony whereof I have signed my name to this specification.

JOHN F. STANDISH.

